2019 XC90 T6 Inscription - Engine Knocking
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    1. #1

      2019 XC90 T6 Inscription - Engine Knocking

      I've had the car six months. I have 15,000 miles on it. The first nine thousand plus miles, no knocking, the engine was as quiet as could be. I had the oil changed at the dealer and now the engine knocks (I'm using 91 or 93 octane gas as recommended). Anyone else have this experience?

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    3. #2
      Junior Member drmanny3's Avatar
      Join Date
      Jun 2018
      Santa Barbara, CA, USA
      Are you hearing engine detonation? Pinging associated with lower octane fuel? These engines have knock sensors on them to retard the timing if detonation is felt. I would not think an oil change would cause that sort of issue. Any messages being displayed? Normally when you have detonation it is associated with putting the engine in a stressful situation such as going uphill in a higher gear. Under what driving conditions do you hear the detonation? Our engines are normally pretty quiet so I wonder what it is you are hearing?
      2017 XC90 T8 Inscription Onyx Black, BW, Leather Dash, Convenience, Vision, Luxury, Air Suspension, Climate, 21" Wheels
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